Battery charger



FIG. 1 is a bottom, front, right side perspective view of a battery charger, showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof;

FIG. 8 is a bottom, front, right side perspective view of the battery charger of FIG. 1 , shown in a condition of use, with cables installed on the charger; and,

FIG. 9 is a bottom, rear, right side perspective view thereof.

The broken lines on the battery charger depict portions of the battery charger that form no part of the claimed design. In FIGS. 8 and 9 , the broken lines depicting cables depict environmental subject matter and form no part of the claimed design. 

CLAIM The ornamental design for battery charger, as shown and described. 